Gugyedong Formation

The Gugyedong Formation, also known as the Guyedong Beds, is an Aptian to Albian geologic formation in South Korea.[1] Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[2]

Gugyedong Formation Stratigraphic range: Aptian-Albian ~120–100 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Hayang Group
Lithology
Primary	Siltstone, conglomerate
Location
Coordinates	36.0°N 128.5°E
Approximate paleocoordinates	43.9°N 126.4°E
Region	Gyeongsangbuk-do
Country	South Korea
Extent	Gyeongsang Basin
Gugyedong Formation (South Korea)

Fossil content

The following fossils have been reported from the formation:[1]

Reptiles

• Ultrasaurus tabriensis[3] (Sauropod indet.)
• Dromaeosauridae indet.[4]
• Sauropoda indet.
• Testudines indet.[4]

Flora

• Pseudofrenelopsis parceramosa[4]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera
• Hasandong Formation
• Jinju Formation

References

1. Guyedong Formation in the Paleobiology Database
2. Weishampel et al., 2004, pp.517-607
3. Kim, 1983
4. Kim et al., 2005

Bibliography

• Kim, H.M.; A.D. Gishlick, and T. Takanobu. 2005. The first non-avian maniraptoran skeletal remains from the Lower Cretaceous of Korea. Cretaceous Research 26. 299–306.
• Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
• Kim, H.M. 1983. Cretaceous dinosaurs from Korea. Journal of the Geological Society of Korea 19. 115–126.